Whole grains consist of bran, germ and endosperm. Bran is the outer shell that protects the seed. Bran contains fiber, B vitamins and minerals .
The fetus contains substances such as B vitamins, as well as vitamin E, minerals and some proteins. Both bran and germ contain many phytonutrients - plant compounds that stimulate health, including polyphenols , phytoestrogens and antioxidants .
The endosperm is the largest part of the nipple. It "supplies" energy and contains carbohydrates , proteins and small amounts of vitamins and minerals. When the nipples are refined, the bran and part of the germ are removed, leaving the starchy endosperm.
Whole grains, including wheat, oats and oatmeal, whole grain barley, brown rice , and popcorn, provide health benefits that cannot be found in refined grains. Whole grains protect against cardiovascular disease, obesity , diabetes and cancer.
Evidence from studies shows that eating three or more servings of whole grains a day can reduce the risk of developing heart disease by an average of 20-30%.
A study of more than 200 women with heart disease found that those who consumed six or more servings of such products a week had fewer arterial build-ups than participants who consumed them. -rarely.
It is not entirely clear how these products protect the heart , probably related to the fiber that is in them. Other substances such as phytoestrogens and antioxidants may also be helpful in lowering cholesterol levels , along with the risk of developing heart disease.